Portable window scaffold



April 30, 1929. l. D. BRAUNE: 1,711,081

PORTABLE WINDOW SCFFOLD Filed Nov. 4, 1926 52 INvaN'roR Isior D. Brau/7e 32 i Patented Apr. 30, 19297- UNITED STATES `Isrnon n. BRAuivn, or FITCHBURG, MAssAcBnsnTTs.

PORTABLE WINDOW SCAFFOLD.

Application. led November 4, 1926. Serial No. 146,082.

rlhis invention relates to portable window scaffolds adapted to be used as a seat, balcony or supportfor window boxes and the like.

One object of the invention is to provide a portable window scaffold of improved construction which shall be adjustable for various window opening sizes, adapted to be removably installed to extend either outside or inside of the window opening` and forming a collapsible structure so that it may be readily handled for setting up in or reino l'al from said window opening and for storing into a compact body for t ansportation i Another object of the invention is to provide a practical window scaffolifl of the chai`- actor described which may serve as a safety guard to prevent children freni falling froni the window.

A further object of the invention is to provide an improved device of the character de scribed comprising few and siinplc parts, which may be formed into a neat and artistically designed structure, which shall be inexpensive to manufacture, and practical and efficient to a high degree in use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the following claims. i

In the accompanyingdrawing, in whichis shown one of the various possible illustrative embodiments of this invention, i

Fig'. 1 is a plan view of a window scaffold and extension platform embodying the invention positioned to extend outside the window opening of a window frame shown in section, and showing in dotted lines the improved scaffold applied to extend inside the window opening.

Fin'. 2 lines Q2 in Fig. 1. i

Fig. 3 is a fragmentary front elevational view of the improved scaffold. showing an end Wall and hook swung' into position parallel to the trellis structure of the scaffold.

Fig. i is a fragmentary perspective view showing a portion of the scaffold extension platform.

Fig. 5 is a top view of the improved scafis a cross-sectional view taken on4 fold collapsed'to form a compact body for storage and transportation.

Referring in detail to the drawing, dcnotes an improved portable scaffold embody* ing the invention which is adapted to be reinovably installed to extend either outside or illside of the opening 11a of a window frame As will beiseen from Figs. 1 and 2, there are provided pairs of anchor plates 12 and 13, each pair having one end or inner portion l2;L and 13, respectively, thereof extending through the. uprights 111 of the window ranie 11 andlinto the spaces 11c Which usually house the window sash weights (not shown) in a well known manner. Said plate ends 12 and 13CL are firinly secured t0 upright members 111 of the frame 11 in any suitable inanner, as by means of bolts 14; i The outer end portions or ends of said pairs of plates are offset as at 12b and 13b and are provided with eyelets or openings 12 and 15c in the outwardly ex tendinglr portions of said plate ends 12h and 13b respectively, thus forming" a detachable anchore-ge for the scaffold 10 inthe manner as will hereinafter niore fully appear.

The scaffold l() may comprise a bottom lat` tice structure 15 formed with parallelly spaced, longitudinally extending, flat bars 15 and a. plurality of parallelly spaced, angle bars l5IJ secured in crossed relation to said bars 15a, the inner ends of the cross bars 15b preferably being cut away as at 15 to form an abutmentstop against the upper edge porn tions or ledges 11 of the Window sill11`e as is clearly shown in Fie'. 2. If desired, suitable means such as screws 16 may be provided for xedly securing said cross-bar inner ends to the sill 11e. `Pivotally secured to the outer ends of saidcross-bars is a ring franiel' which supports a front trellis structure 18. As shown in Fig. 3, said ring frame engages the downwardly ext-ending wall portion of the outer ends of the end cross-bars 15 as at 15".

The trellis structure 18 is formed of intermesliing grille wires 18a neatly and artistically designed and secured to the ring frame i 17 in any suitable manner, as by interweaving with cross-grille wires 18b therewith and spot Welding, soldering, or providing tie Wires for i forming the ring frame and grille Wires into a rigid trellis structure.

The end walls 19 of the scaffold `are pivotally mounted on the opposite upstanding portions 17 a of the ring frame 17 and `may be ry u constructed in any suitable manner. As here shown, each end wall 19 is formed with a rini bar 19, the free ends of which'terminate in eye hooks 19b which engage the ring frame portion 17a. A pair of bands 2O and 21 is also provided to extend in crossed relation for interconnecting opposite sides of the end Walls. The band 21 pivotally engages a n1idsection of the ring nielnber portion 17ll and is preferably niade relatively Wide, said band being cut away at 21n adjacent the portion thereof connecting with the rini bar 19a. Said cut away portion 21 provides a space for receiving the pivoted end of a link 22 which is journaled to the iortion 19C of the rim bar 19 as shiivvn in l? ig. 3. The free end of the link 22 terminates in a hook 2, each hook being adapted to engage either one of the eyelets 12C or 13"'.

As shown in Fig. 5, the Window scaffold structure may be folded up into a conipactunit for transoortation.A storage or to facilitate setting up the-scadold to extend outside the Window opening and the dismounting of said scaffold structure.

To install the scaffold 10 outside the window opening, the scaffold 10 irl-collapsed position is placed in the windenT opening 11il with the bottoni structure 15 against the Window sill 11e. The trellis structure 18 and side Wall 19 are then unfolded and the links 22 engaged to the pair of anchor plates 12. This is readily done since the links are rela tively free to move with respect to the front trellis structure, said links being carried on two pivoting points,` one being the direct connection of the links with the rim bar 19a, and the other being the rim bars pivotal connection with the ring frame 17. After t-he links have been engaged With the anchoring` plates, the scaffold niay be extended out side the Window until the cut away portion 15 of the cross-har 15" abuts the outer ledge 11I of the Window sill 11e.` In this position it Will be noted that the scaffold forms a rigid structure adapted to carry substantial Weight so that it may be used as a seat for supporting a person while engaged in cleaning Windows, or` as a balcony on which a Window box or like article may be safely mounted.

To niore firmly secure the scaffold against accidental displacement. the screws 16 may be provided to fixedly fasten the c1.oss-bars 15" to the window sill 11.

The scaffold 1011112113/ also be utilized for supporting Window boxes having potted plants during the Winter months when it is desirable to support such plants inside of the Window opening. For such service, the scaffold 10 may be removed from the outside and attached to the pairs of anchored plates 13. as is clearly shown in the dotted line posit-ion as shown in Figs. 1 and 2. v

Although the scaffold 10 is proportioned to tit Window openings of standard Width, it

may also be applied to window openings varying' sonieivhat freni the standard size be anse of the pivotal arrangement of the links to the end Walls, of the end Walls to the trellis structure; and of `the trellis structure to the bottoni structure.

T he scaffold 10 when set up in the Window opening to extend either outside er inside the windoiv opening serves as a safety guard to prevent children frein falling through the Window openingl since it fornls a, shield or obstruction7 as is readily seen from Fig. 1.

It is often found that the supporting surface provided by the bottoni structure 11 is insufficient for certain purposes and it is desirable that more supporting surface be provided. In such cases an extended platforin niay be provided. Said platform may comprise longitinlinally spaced flat bars 31 connected by cross, angle bars 32, said being connected together.' in any suitable manner as by uxeans of rivets 3d to forni a rigid structure. The end portion of the downwardly ei-:tending Wall of each of the angle bars may be provided With an L-shaped slot 32d at one of the inner ends thereof, said slot being adapted to engage the lower horizontally extending portion 17"L of the ring frame 17. The other ends of the outermost cross nielnbers 32 may each be provided Wi th a suitable fitting 35 which extends up from the platform, said fitting being adapted to engage with one end 36a of a bracing chain 36, the other end of said chain being releasably secured to the upper horizontally cxtending portion 171 of the ring freine 17. The extending platform 30 may thus be deniountably supported on the scaffold When it is desired to incre se the Weight supporting surface and may be readily removed when not in use by detaching it from the scaffold 10.

The ring frame 17 and trellis structure 18 are preferably fornied with rounded end portions 17b and 18, resiliectively, so that when the scaffold 10 collapsed. the bottom structure 15, end walls 19 and links may be folded into said frame and trellis structure to forni a compact or easily handled unit as is clearly shown in Fig. .3.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved, and which is Well adapted to insetthe conditions of practical use.

As various possible enibfnlinients inight be inade of the above invention. and as various changes mightv be made in the embodiment above set forth. it is to be understood that all inatter herein set forth or shown in thc accompanying drawing, is to be interpreted as illustrative and not in a limiting sense.

Having thus described iny invention, I claim as new and desire to secure by Letters Patent-:-

l. The combination with a frame having a window opening of a pair of anehoringl plates liixedly secured to extend from opposite sides ot the trame, e scaffold having front, bottom and side Walls connected together to form a collapsible structure, means extending from said side Walls for detaehably engaging said pair of Said anchoring plates whereby said seatl'old magy be installed to extend from the window opening, and a platform denlonntably secured to said scattold `tor extending the Weight supporting Surface of the bottom ot' said structure beyond the front wall, as and for the purpose described and Specified.

Q. A sealold ot the Character described comprising a front AWall having pivot-ally interconnected thereto a bottom and side Walls, means carried by said side Walls for detachably engaging the scaffold to a Window frame to extend 'from the Window opening, the portions ot the front Wall eonnecting with the side Wells being curved to permit enfolding the bottom, side walls, and said means, as and `for the purpose deeeribed and specified.

3. A collapsible device ot' the character described Comprising a front wall having curved end portions, a bottom structure pivoted to said front Wall, end Walls swingabllv mounted on said curved end portions, a detachable fastening member pivotally carried by each of said end walls whereby said device forms a rigid Weight supporting scaffold when extended from a window opening with said members det-aehably anchored to the traine of the window opening, and a platform demonntably seeured to said seail'old for extending the Weight supporting area of the bottom of said structure beyond said front Wall.

4. A collapsible device of the character de- .scribed comprising a front Wall, a bottom structure pivoted to said front Walls, end

Walls swingably mounted from opposite sides of said front Wall, a detachable fastening member carried by each of seid endwalls whereby7 said device forms a rigid weight snpporting scaffold when extended from a Window openinr with said members detaehably anchored to the frame of the Window opening end said bottom structure engaging the sill ot' said Window frame, and a deinounta-ble platform having bayonet slots engaging with seid front Wall for increasing the available weight supporting surface.

In testimony whereof I allix my signature.

`ISIDOR D. BEAUNE. 

